#  Copyright (c) 2010
#  The Regents of the University of Michigan
#  All Rights Reserved

#  Permission is granted to use, copy, create derivative works, and
#  redistribute this software and such derivative works for any purpose,
#  so long as the name of the University of Michigan is not used in
#  any advertising or publicity pertaining to the use or distribution
#  of this software without specific, written prior authorization. If
#  the above copyright notice or any other identification of the
#  University of Michigan is included in any copy of any portion of
#  this software, then the disclaimer below must also be included.

#  This software is provided as is, without representation or warranty
#  of any kind either express or implied, including without limitation
#  the implied warranties of merchantability, fitness for a particular
#  purpose, or noninfringement.  The Regents of the University of
#  Michigan shall not be liable for any damages, including special,
#  indirect, incidental, or consequential damages, with respect to any
#  claim arising out of or in connection with the use of the software,
#  even if it has been or is hereafter advised of the possibility of
#  such damages.

import code
import socket

class SocketConsole(code.InteractiveConsole):
  def __init__(self, sock):
    code.InteractiveConsole.__init__(self)
    self.sock = sock
    self.data = ''

  def write(self, data):
    self.sock.send(data)

  def raw_input(self, prompt=''):
    try:
      self.sock.send(prompt)
      newline_idx = self.data.find('\n')
      while newline_idx == -1:
        self.data += self.sock.recv(1024)
        newline_idx = self.data.find('\n')
      ret = self.data[:newline_idx]
      self.data = self.data[newline_idx + 1:]
      return ret.rstrip()
    except socket.error:
      raise EOFError()
